Item content validity index (I-CVI) and universal agreement (CVI/UA) for the first and second assessment loops of a proposed intervention study protocol to reduce parachute opening neck loads among skydivers
| First assessment | Second assessment | |||
|---|---|---|---|---|
| Item domain | Grade range | I-CVI | Grade range | I-CVI |
| Relevance | ||||
| Entire intervention | 4 | 1.00 | 4 | 1.00 |
| 1 (major component) | 3–4 | 1.00 | 4 | 1.00 |
| 1.1 | 3–4 | 1.00 | 4 | 1.00 |
| 1.2 | 4 | 1.00 | 4 | 1.00 |
| 1.3 | 2–4 | 0.83 | Omitted | |
| 2 (major component) | 3–4 | 1.00 | 3–4 | 1.00 |
| 2.1 | 2–4 | 0.83 | 3–4 | 1.00 |
| 2.2 | 3–4 | 1.00 | 4 | 1.00 |
| 2.3 | 3–4 | 1.00 | 3–4 | 1.00 |
| 2.4 | 3–4 | 1.00 | 3–4 | 1.00 |
| 2.5 | 3–4 | 1.00 | Omitted | |
| 2.6 (anomaly) | 1–4 | 0.50 | Omitted | |
| CVI/UA | 0.80 | 1.00 | ||
| Simplicity | ||||
| Entire intervention | 3–4 | 1.00 | 4 | 1.00 |
| 1 (major component) | 4 | 1.00 | 3–4 | 1.00 |
| 1.1 | 4 | 1.00 | 3–4 | 1.00 |
| 1.2 | 4 | 1.00 | 4 | 1.00 |
| 1.3 | 4 | 1.00 | Omitted | |
| 2 (major component) | 2–4 | 0.80 | 1–4 | 0.80 |
| 2.1 | 3–4 | 1.00 | 2–4 | 0.80 |
| 2.2 | 2–4 | 0.83 | 3–4 | 1.00 |
| 2.3 | 2–4 | 0.83 | 3–4 | 1.00 |
| 2.4 | 2–4 | 0.83 | 2–4 | 0.80 |
| 2.5 | 2–4 | 0.80 | Omitted | |
| 2.6 (anomaly) | 1–4 | 0.25 | Omitted | |
| CVI/UA | 0.50 | 0.63 | ||
| Safety | ||||
| Entire intervention | 4 | 1.00 | 4 | 1.00 |
| 1 (major component) | 3–4 | 1.00 | 4 | 1.00 |
| 1.1 | 3–4 | 1.00 | 4 | 1.00 |
| 1.2 | 3–4 | 1.00 | 4 | 1.00 |
| 1.3 | 4 | 1.00 | Omitted | |
| 2 (major component) | 2–3 | 0.83 | 3–4 | 1.00 |
| 2.1 | 3–4 | 1.00 | 3–4 | 1.00 |
| 2.2 | 3–4 | 1.00 | 4 | 1.00 |
| 2.3 | 3–4 | 1.00 | 4 | 1.00 |
| 2.4 | 2–4 | 0.83 | 4 | 1.00 |
| 2.5 | 2–4 | 0.80 | Omitted | |
| 2.6 (anomaly) | 1–4 | 0.50 | Omitted | |
| CVI/UA | 0.70 | 1.00 | ||
Domain-specific explications of grades 1–4 are given in table 1.